1 domain name or ip address url checking, 2 full path url checking, 3 file name url checking – ZyXEL Communications ZyXEL ZyWALL 2WG User Manual
Page 246: 7 content filtering cache
Chapter 12 Content Filtering Screens
ZyWALL 2WG User’s Guide
246
12.6.1 Domain Name or IP Address URL Checking
By default, the ZyWALL checks the URL’s domain name or IP address when performing
keyword blocking.
This means that the ZyWALL checks the characters that come before the first slash in the
URL.
For example, with the URL
www.zyxel.com.tw/news/pressroom.php
, content filtering only
searches for keywords within
www.zyxel.com.tw
.
12.6.2 Full Path URL Checking
Full path URL checking has the ZyWALL check the characters that come before the last slash
in the URL.
For example, with the URL
www.zyxel.com.tw/news/pressroom.php
, full path URL checking
searches for keywords within
www.zyxel.com.tw/news/
.
Use the
ip urlfilter customize actionFlags 6 [disable | enable]
command
to extend (or not extend) the keyword blocking search to include the URL's full path.
12.6.3 File Name URL Checking
Filename URL checking has the ZyWALL check all of the characters in the URL.
For example, filename URL checking searches for keywords within the URL
www.zyxel.com.tw/news/pressroom.php
.
Use the
ip urlfilter customize actionFlags 8 [disable | enable]
command
to extend (or not extend) the keyword blocking search to include the URL's complete
filename.
12.7 Content Filtering Cache
Click SECURITY > CONTENT FILTER > Cache to display the CONTENT FILTER
Cache screen.
Use this screen to view and configure your ZyWALL’s URL caching. You can also configure
how long a categorized web site address remains in the cache as well as view those web site
addresses to which access has been allowed or blocked based on the responses from the
external content filtering server. The ZyWALL only queries the external content filtering
database for sites not found in the cache.
You can remove individual entries from the cache. When you do this, the ZyWALL queries
the external content filtering database the next time someone tries to access that web site. This
allows you to check whether a web site’s category has been changed.
Please see
for how to submit a web site that has been incorrectly
categorized.